EP3670258A1 - Light module system and method of controlling the light module system - Google Patents

Light module system and method of controlling the light module system Download PDF

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Publication number
EP3670258A1
EP3670258A1 EP18213620.0A EP18213620A EP3670258A1 EP 3670258 A1 EP3670258 A1 EP 3670258A1 EP 18213620 A EP18213620 A EP 18213620A EP 3670258 A1 EP3670258 A1 EP 3670258A1
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EP
European Patent Office
Prior art keywords
light
light module
light distribution
module
distribution
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP18213620.0A
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German (de)
French (fr)
Inventor
Josef Plank
Thomas SCHLINGER
Andreas Moser
Bettina REISINGER
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ZKW Group GmbH
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ZKW Group GmbH
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Publication date
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Priority to EP18213620.0A priority Critical patent/EP3670258A1/en
Publication of EP3670258A1 publication Critical patent/EP3670258A1/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00Arrangements or adaptations of optical signalling or lighting devices
    • B60Q1/02Arrangements or adaptations of optical signalling or lighting devices the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04Arrangements or adaptations of optical signalling or lighting devices the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/06Arrangements or adaptations of optical signalling or lighting devices the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely controlled from inside vehicle
    • B60Q1/08Arrangements or adaptations of optical signalling or lighting devices the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely controlled from inside vehicle automatically
    • B60Q1/085Arrangements or adaptations of optical signalling or lighting devices the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely controlled from inside vehicle automatically due to special conditions, e.g. adverse weather, type of road, badly illuminated road signs or potential dangers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q9/00Arrangements or adaptations of signal devices not provided for in one of the preceding main groups, e.g. haptic signalling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/40Indexing codes relating to other road users or special conditions
    • B60Q2300/45Special conditions, e.g. pedestrians, road signs or potential dangers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2400/00Special features or arrangements of exterior signal lamps for vehicles
    • B60Q2400/50Projected signs, i.e. symbol or information is projected onto the road
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2103/00Exterior vehicle lighting devices for signalling purposes
    • F21W2103/60Projection of signs from lighting devices, e.g. symbols or information being projected onto the road

Abstract

Light module system comprising a first light module and a second light module, the first light module being controllable as a function of the second light module, the first light module being designed and configured as a non-high-resolution light module, a light distribution of a first type (1, 10) in to produce an area in front of the light module system, the light distribution of the first type (1, 10) being dimmable, the second light module being designed as a high-resolution light module, a minimum brightness being assigned to part (4) of the light distribution of the first type, and the second light module is set up to generate at least one floor projection light distribution (3) in an operating mode, the at least one floor projection light distribution (3) being an optical representation of information, and thereby causing the first light module to cause the light distribution of the dimming the first type at least partially, and the part (4) of the light distribution of the first type.

Description

  • The invention relates to a light module system comprising a first light module and a second light module, the first light module being controllable as a function of the second light module, the first light module being designed and configured as a non-high-resolution light module, a light distribution of a first type in one Generate area in front of the light module system, wherein the preferably entire light distribution of the first type is dimmable, the second light module is designed as a high-resolution light module, a minimum brightness being assigned to part of the light distribution of the first type.
  • In addition, the invention relates to a method for controlling a light module system of a motor vehicle headlight, the light module system producing a light distribution in which at least one piece of information is optically represented.
  • In addition, the invention relates to a computer program comprising commands which cause the light module system of the type mentioned above to carry out the method of the type mentioned above, and a computer-readable medium with such a computer program.
  • Furthermore, the invention relates to a motor vehicle control device, in particular control device for a light module system of the type mentioned above, with a computer-readable medium of the type mentioned above.
  • In addition, the invention relates to a motor vehicle or a motor vehicle headlight with at least one light module system of the type mentioned above and / or with at least one computer-readable medium of the type mentioned above or with at least one motor vehicle control device of the type mentioned above.
  • Motor vehicle headlights are already equipped with high-resolution light modules, which create the possibility, mainly in a central area, to generate flexible light distributions. Among other things, such symbols can be used to project various symbols onto the road in front of or next to the motor vehicle. The high-resolution light modules can thus be used for an optical representation of information are used, the corresponding symbol projections, which serve as a visual representation of the information, are often summarized under the term Advanced Information Beam (AIB). In addition to the high-resolution light modules, conventional motor modules, usually with a lower or coarse resolution, are used as a supplement to cover peripheral areas of the light distribution.
  • Based on what has been said above, the aforementioned dimmability of the entire light distribution of the first type means that not only the entire light distribution can be dimmed, but also predetermined parts of the light distribution can be dimmed independently or depending on the rest of the light distribution.
  • When implementing AIB, it is desirable that the symbols that visually represent the information are displayed with sufficient contrast in the apron area of the light distribution in order to be clearly recognizable.
  • The object of the present invention is to provide a light module system and a method for controlling a light module system, which make it possible to improve the perception of the optically represented information without impairing the brightness in predetermined, preferably essential areas of the light distribution and in particular the Not to fall below the minimum brightness in these areas.
  • The object is achieved with a light module system of the aforementioned type in that the second light module is set up to generate at least one floor projection light distribution in an operating mode, the at least one floor projection light distribution comprising or being an optical representation of information, and thereby causing the first light module (directly or indirectly) to at least partially (preferably successively) dim (down) the light distribution of the first type and to illuminate the part of the light distribution of the first type. The second light module preferably illuminates all areas or parts of the light distribution of the first type whose brightness has been reduced, except for the area immediately around the floor projection light distribution.
  • The expression “a minimum brightness is assigned to a part of the light distribution” means that a minimum brightness is prescribed for this part of the light distribution, which must not be undercut, for example if the light distribution of is dimmed down or down to full brightness. The minimum brightness for certain motor vehicle lighting systems can be prescribed, for example, at certain points and / or segments of the light distribution or part of the light distribution (see for example OJ L 222 of the European Union of August 24, 2010, pp. 1-61 ).
  • With the formulation that "the second light module is set up to generate at least one floor projection light distribution in one operating mode, ..., and thereby cause the first light module (directly or indirectly) to at least partially dim the light distribution of the first type (dim down) ", it is expressed that the second light module sends corresponding control signals (commands) to the first light module after, preferably as soon as it has generated the floor projection light distribution and thereby the first light module - in this case directly - to it causes the light distribution of the first type to be at least partially dimmed.
  • For example, the second light module can cause the first light module to preferably successively dim all or only part of the light distribution of the first type immediately after it has generated the floor projection light distribution.
  • By illuminating the part of the light distribution in the above-mentioned operating mode when the light distribution of the first type is dimmed, the second light module supports the first light module and has the effect that the brightness in this part is not significantly impaired and in particular remains constant and the minimum brightness even is not undercut. This means that the second light module begins to illuminate the part of the light distribution at the earliest when the first light module begins to dim the light distribution of the first type - in this case, the brightness of the part of the light distribution remains essentially constant, and at the latest begins to illuminate when the brightness in the part of the light distribution reaches the minimum brightness or is reduced to the minimum brightness - in this case, the brightness in the part of the light distribution is reduced only for a short time.
  • In connection with the present invention, the term “high-resolution light module” or “non-high-resolution light module” is used Understand light module that is set up to generate a high-resolution or non-high-resolution light distribution.
  • The "resolution of a light distribution" can be defined with the aid of the smallest area of this light distribution to be hidden or the smallest independently controllable area.
  • For example, if a motorcycle with a width of 1 m is assumed to be the smallest possible road user, a (horizontal) area of 1.5 m should ideally be hidden for this road user. It goes without saying that this area should not be hidden directly on the headlight but at a certain distance. To calculate this distance, for example, the maximum legally permitted light intensity of 215000 cd that a headlight can emit can be used. At a distance of approximately 463 m, 215000 cd correspond to an illuminance of 1 lx - this distance is often referred to as the "1 lux limit". If there is another road user, e.g. the aforementioned motorcycle, it should be hidden within the 1 lux limit so that there is no glare. An area of 1.5 m at a distance of 463 m corresponds to an opening angle (viewed from the headlight) and thus a resolution of approximately 0.18 °.
  • In summary, the light distributions - and also the light modules that generate these light distributions - can be characterized in terms of resolution as follows:
    • High-resolution light distribution: resolution is less than or equal to 0.2 °, for example between 0.1 ° and 0.18 °;
    • high performance resolution: resolution is between 0.2 ° and 0.5 °;
    • Transition area: resolution is between 0.5 ° and 1 °;
    • medium resolution: resolution between 1 ° and 3 °;
    • rough resolution: resolution is greater than 3 °.
  • The resolutions can also correspond to headlight functions that are implemented using the light modules. For example, a coarse-resolution light module can be used for pure low beam and / or - not glare-free - high beam function. Headlight modules with which a high performance resolution can be achieved can produce glare-free high beam (e.g. LED matrix systems). The light modules, the one Can produce light distribution with a medium resolution, in addition to glare-free high beam, other dynamic low beam functions such as cornering light can be generated without the need to swivel the light module. The high-resolution light modules are light modules that are set up to generate projections of symbols, lines, lettering, etc. onto the road or onto another projection level.
  • The second light module is preferably a DLP light module. The resolution of such a light module can be determined by the resolution of the DLP chip used in the DLP light module. In a preferred embodiment, a DLP chip with a resolution of 1.3 megapixels or 1156 * 1156 pixels. A DLP light module can therefore achieve a significantly higher resolution of the light distribution than the 0.2 ° mentioned above.
  • Other high-resolution modules such as DMD, laser scanner, LCD, high-resolution LED arrays or the like can also be used as technology for the second light module.
  • In connection with the present invention, the term “area in front of the light module system” is understood to mean an area in front of the light modules of the system, as seen in the main emission direction. If the light modules of the light module system are installed in a motor vehicle headlight, this area relates to an area in front of the motor vehicle headlight. In the field of motor vehicle lighting technology, depending on the context, a light distribution is either a three-dimensional light cone generated by a light module or a motor vehicle headlight - that is, cone-shaped light emitted by the light module or the motor vehicle headlight - or a two-dimensional projection of this light cone on the floor - this is often used the term "floor projection" is used - or on an imaginary plane perpendicular to the main emission direction. A measurement screen in a lighting technology laboratory can be used as such a level, for example, which is arranged at a distance of approximately 25 meters in front of the light module, light module system or motor vehicle headlight. The aforementioned area typically begins at around 1 meter in front of the light module system.
  • The term “undimmed” or “dimmed” light distribution is understood to mean a light distribution that has an unreduced or reduced brightness.
  • The minimum brightness can be, for example, a minimum brightness required by law, for example according to ECE, FMVSS, AIS, CCC. For example, minimum brightness values according to ECE-R123 are prescribed in the area of the asymmetry increase of an asymmetrical light-dark limit of a low beam distribution.
  • The first light module can comprise, for example, a dimmable light source (semiconductor-based light source, such as laser diodes, LEDs, etc.) and / or a diaphragm device whose light transmission can be varied in order to dim the light distribution. Such an aperture device can be, for example, an LCD, LCoS, or the like. include or be formed as such.
  • It may be expedient if the light module system further comprises a control device which is assigned to the first and the second light module and is set up to control the first and the second light module and the first light module as a function of the second light module, as described above to control. When the control signals described above pass from the second light module to the first light module via the control device, the second light module indirectly controls the first light module. Furthermore, the control device can operate the second light module in various operating modes described below by way of example and switch between the modes. The control device can, for example, also control the aforementioned illuminant and / or the aforementioned aperture device. For example, the control device can send control signals to the first light module and the second light module and receive them from the first light module and from the second light module. In particular, the control device can control the second light module and the first light module as a function of the second light module as follows:
    • Send command 1 to the second light module: project symbol (floor projection light distribution is generated);
    • Sending command 2 to the first light module: at least partially dimming the light distribution (the light distribution of the first type is dimmed at least in an area including the floor projection light distribution and the part of the light distribution to which the minimum brightness is assigned);
    • Sending command 3 to the second light module: illuminate the part of the light distribution to which the minimum brightness is assigned (the brightness of this part of the light distribution preferably remains unchanged).
  • In a preferred embodiment it can be provided that the floor projection light distribution is completely contained in the light distribution of the first type. It goes without saying that terms such as “contain”, “overlap” etc., which relate to positions of the light distributions or the regions of these light distributions, relate to the aforementioned projections of the corresponding light cones. This is again through the below Figure 2 clarifies.
  • Furthermore, it can be provided that the second light module is set up to illuminate the part of the light distribution in the operating mode if the dimming of the light distribution of the first type leads to the minimum brightness in the part of the light distribution of the first type (from above) being reached . It should be emphasized that the part of the dimmed light distribution is illuminated as soon as the minimum brightness is reached - that is, at the same time as the minimum brightness is reached.
  • This has the advantage that the support of the dimmable light distribution of the first type, for example a dimmable low-beam light distribution, takes place under a further condition - namely when the minimum brightness in the part of the dimmed light distribution, for example in an area comprising the light-dark boundary the light distribution is achieved. As a result, the time in which the second light module illuminates the part of the dimmed light distribution can be reduced and, as a result, energy consumption can be optimized.
  • A sensor device, such as cameras, can be assigned to the aforementioned control device, for example, in order to measure the brightness of the light distributions generated by the light module system. However, it is not necessary to measure the brightness of the light distributions generated. For example, it is conceivable that first light module contains a dimming threshold as a dimming parameter. If the first light module is dimmed to this dimming threshold, the minimum brightness values are (automatically) reached in the aforementioned part of the dimmed light distribution. When the dimming threshold is reached or when the brightness is reduced to the dimming threshold, the first light module can communicate this to the second light module (directly or via the control device). In this case, the second light module can begin to illuminate the above-mentioned part of the light distribution.
  • In addition, it can advantageously be provided that the part of the light distribution of the first type to which the minimum brightness is assigned comprises a light-dark transition.
  • The minimum brightness can be expressed, for example, as the minimum illuminance.
  • In a preferred embodiment, it can be provided that the first light module is a coarse-resolution low-beam light module, the light distribution of the first type is a low-beam light distribution and the part of the light distribution of the first type to which the minimum brightness is assigned is a light-dark boundary, for example an asymmetrical one Light-dark border includes.
  • In addition, it can advantageously be provided that the second light module can be operated in a further operating mode, the second light module generating a light distribution of a second type in the further operating mode, the light distribution of the first type and the light distribution of the second type jointly forming an overall light distribution , wherein the light distribution of the second type is preferably a partial high beam distribution and the total light distribution is a high beam distribution.
  • A partial high beam distribution is understood to be a partial light distribution which, together with a low beam distribution, forms a high beam distribution.
  • If the second light module is set up, it can be expedient to have a high-resolution light distribution in a horizontal angular range between approximately -20 ° and approximately + 20 °. for example, between about -12 ° and about + 12 °, in particular between about -8.5 ° and about + 8.5 °, preferably between about -7 ° and about + 7 °.
  • The term “horizontal angular range” is understood to mean an angular range in the case of a two-dimensional projection of the light distribution onto a plane perpendicular to the main emission direction. This information often refers to the above-mentioned measuring screen in a lighting technology laboratory. This horizontal angular range also corresponds to the azimuthal opening angle of the light cone.
  • In a preferred embodiment it can be provided that the optically represented information is at least one of the following: navigation information, such as a directional arrow; a lettering; a logo; Pedestrian communication, e.g. in the form of a projected zebra stripes, welcome logos or similar.
  • According to the invention, the aforementioned object is also achieved with a method of the type mentioned above in that the method has the following steps:
    • Provision of a light module system, the light module system comprising a first light module and a second light module, the first light module being controllable as a function of the second light module, the first light module being designed as a non-high-resolution light module and the second light module as a high-resolution one Light module is formed;
    • Generating a dimmable light distribution in an area in front of the light module system by means of the first light module, a minimum brightness being assigned to part of the dimmable light distribution;
    • Generating at least the floor projection light distribution in the area in front of the light module system by means of the second light module in order to optically represent the information;
    • Causing the first light module by means of the second light module to at least partially dim the dimmable light distribution in order to produce a dimmed light distribution, and illuminating the part of the dimmed light distribution to which the minimum brightness is assigned by means of the second light module.
  • The floor projection light distribution, by means of which the information is represented optically, is preferably completely contained in the area illuminated with the dimmable light distribution of the first type. More specifically, the two-dimensional projection is the Floor projection light distribution onto the floor comprises the two-dimensional floor projection of the dimmable light distribution of the first type.
  • Preferably, the second light module causes the first light module to dim the dimmable light distribution as soon as the second light module has generated the floor projection light distribution in order to increase the contrast of the floor projection light distribution (as soon as possible). The part of the dimmed light distribution is preferably illuminated either immediately after the first light module begins to dim the light distribution of the first type or as soon as the minimum brightness is reached in this part or as soon as the brightness in this part is reduced to the minimum brightness.
  • As already mentioned, the minimum brightness can be reached in the part of the (back or down) dimmed light distribution. However, this only happens very briefly, because as soon as the minimum brightness is reached, the second light module illuminates the part and ensures that the brightness in this part is raised again and the minimum brightness values are not fallen below.
  • The object is also achieved with a computer program, the computer program comprising instructions which cause the aforementioned light module system to carry out the aforementioned method. The computer program can be stored in the light module system, for example in the second light module, in particular on a storage medium in the second light module.
  • In a preferred embodiment it can be provided that the computer program is stored on the aforementioned control device and the commands of the computer program cause the control device to carry out the aforementioned method.
  • The task is also solved with a computer-readable medium with such a computer program.
  • It can be provided that the aforementioned control device comprises the computer-readable medium.
  • Furthermore, the object is achieved with a motor vehicle control device with the aforementioned computer-readable medium.
  • As already mentioned, the light module system can comprise a control device which, as described above, controls the first and the second light module accordingly. It is expedient if the motor vehicle control device is this control device.
  • Furthermore, the object is achieved with a motor vehicle or a motor vehicle headlight with at least one aforementioned light module system and / or with at least one aforementioned computer-readable medium or with at least one aforementioned motor vehicle control device. The motor vehicle control device or the control device of the light module system can, for example, be arranged in or in the motor vehicle headlight (s) and be an integral part thereof. It can also be an integral part of an electronic central control system of a motor vehicle.
  • The invention and further advantages are explained in more detail below on the basis of exemplary embodiments which are illustrated in the drawing. In this shows
    • Fig. 1 a low beam distribution, and
    • Fig. 2 a supported low beam distribution and a floor projection light distribution.
  • Unless otherwise stated, the same reference symbols in the following figures denote the same features.
  • Figures 1 and 2 show light distributions that can be generated with the aforementioned light module system, which is controlled according to the aforementioned method. The light module system can be arranged in a motor vehicle headlight or in a motor vehicle.
  • First, the Figure 1 Referred. This shows a dimmable low-beam light distribution 1, which is shown, for example, on a measuring screen in a lighting technology laboratory. Figure 1 reveals an orthogonal coordinate system that is used in most lighting technology laboratories. The X axis of the system is the HH line or the horizontal. This is a line on the horizon corresponding to the horizon Measuring screen. It runs parallel to the lane (in the laboratory - an imaginary lane). The VV line or the vertical is perpendicular to the HH line and cuts it at an intersection HV of the photometric beam axis from the center of the light module with the measuring screen. The point HV is the origin of the coordinate system. The dimmable low-beam light distribution 1 has an asymmetrical cut-off line 2.
  • The dimmable low-beam light distribution 1 can correspond to the light distribution of the first type that the aforementioned first light module generates.
  • Figure 2 shows the dimmable low-beam light distribution 10 in a dimmed state - this is illustrated by different dashed lines - in which the dimmed low-beam light distribution has a reduced brightness. In addition, in the Figure 2 to recognize a floor projection light distribution 3 in the form of an arrow bent to the right. The arrow is a visual representation of information. This can signalize, for example, that a maneuver to the right is planned. As already mentioned, the floor projection light distribution 3 can be designed differently and thus represent other information optically. For example, the floor projection light distribution 3 can contain navigation information, such as a direction arrow; a lettering; a logo; Pedestrian communication, for example in the form of a projected zebra crossing, welcome logos or the like. A floor projection light distribution of this type is often used to display graphic information and, as already mentioned, is abbreviated as "AIB". The floor projection light distribution 3 is generated by means of the aforementioned second light module when the second light module is operated in the (first) operating mode. As soon as the floor projection light distribution 3 is generated, the second light module causes the first light module to dim the low beam light distribution 1. The first light module then generates the dimmed low beam light distribution 10. The low beam light distribution 1 can also be dimmed after a (rather short) delay after the floor projection -Light distribution 3 was generated. This increases the contrast and the visibility of the floor projection light distribution 3 and thus improves the perceptibility of the optically represented information. As already mentioned, a predetermined minimum brightness is assigned to part 4 of the low beam distribution. This minimum brightness can be, for example, a minimum brightness required by law. In a dimmed state, the low beam distribution 1 should not fall below the minimum brightness, or do not fall below the minimum brightness values. Especially if the minimum brightness is required by law, it must not be fallen below. In the further (second) operating mode, the second light module can generate a partial high beam distribution.
  • Figures 1 and 2 indicate that in connection with the present invention the term "part of a light distribution" is understood to mean a spatially delimited area. The brightness of such a part can be varied without changing the shape of the part.
  • In order not to fall below the minimum brightness, the second light module supports the first light module by illuminating part 4 of the low-beam light distribution 1 while it is operated in the aforementioned (first) operating mode and generates the floor projection light distribution 3. Figure 2 shows that this part 4 comprises part of the asymmetrical light-dark boundary 2. By illuminating part 4 with the second light module, it is possible, for example, to achieve the same brightness in this part 4 as with the undimmed low-beam light distribution 1 - this is illustrated by the same broken lines. It goes without saying that the aforementioned light module system or method or motor vehicle headlight or motor vehicle can achieve the same brightness in the part of the light distribution of the first type which is illuminated by the second light module, for other light distributions or for differently designed parts of the light distributions.
  • For the sake of brevity, the foregoing description of the invention has been limited to those components which may be helpful in explaining the invention. The person skilled in the art can clearly see from the description that, for example, a light module system can also have a large number of further components, which are not explicitly mentioned here, such as setting and adjusting devices, electrical supply means, a sensor means, for example one or more cameras for determining the brightness of the emitted light distributions and much more.
  • The reference numbers in the claims serve only for a better understanding of the present inventions and in no way mean a limitation of the present inventions.

Claims (15)

  1. Light module system comprising a first light module and a second light module, the first light module being controllable as a function of the second light module, wherein
    the first light module is designed as a non-high-resolution light module and is set up to generate a light distribution of a first type (1, 10) in an area in front of the light module system, the light distribution of the first type (1, 10) being dimmable,
    - The second light module is designed as a high-resolution light module, wherein
    - A part (4) of the light distribution of the first type is assigned a minimum brightness, and
    - The second light module is set up to generate at least one floor projection light distribution (3) in an operating mode, the at least one floor projection light distribution (3) being an optical representation of information, and thereby causing the first light module to cause the light distribution of the dimming the first type at least partially, and illuminating part (4) of the light distribution of the first type.
  2. The light module system according to claim 1, wherein the second light module is configured to illuminate the part (4) of the light distribution in the operating mode if the dimming of the light distribution of the first type leads to the minimum brightness in the part (4) of the light distribution of the first Type is achieved.
  3. Light module system according to claim 1 or 2, wherein the part of the light distribution of the first type comprises a light-dark transition.
  4. Light module system according to one of claims 1 to 3, wherein the first light module is a low-resolution low-beam module, the light distribution of the first type is a low-beam light distribution (1, 10) and the part of the light distribution of the first type (4) to which the minimum brightness is assigned , comprises a cut-off line (2), for example an asymmetrical cut-off line.
  5. Light module system according to one of claims 1 to 4, wherein the second light module can be operated in a further operating mode, the second light module in the further Operating mode generates a light distribution of a second type, the light distribution of the first type and the light distribution of the second type together forming an overall light distribution, the light distribution of the second type preferably being a partial high beam distribution.
  6. Light module system according to one of claims 1 to 5, further comprising a control device which is assigned to the first and the second light module and is configured to control the first and the second light module and to control the first light module in dependence on the second light module.
  7. Light module system according to one of claims 1 to 6, wherein the second light module is set up, a high-resolution light distribution in a horizontal angular range between about -20 ° and about + 20 °, for example between about -12 ° and about + 12 °, in particular between about -8.5 ° and about + 8.5 °, preferably between about -7 ° and about + 7 °.
  8. Method for controlling a light module system of a motor vehicle headlight, preferably a light module system according to one of claims 1 to 7, wherein the light module system generates a light distribution in which at least one piece of information is optically represented, comprising the following steps:
    - Providing a light module system, the light module system comprising a first light module and a second light module, the first light module being controllable as a function of the second light module, the first light module being designed as a non-high-resolution light module and the second light module as one high-resolution light module is formed;
    - Generating a dimmable light distribution (1, 10) in an area in front of the light module system by means of the first light module, a minimum brightness being assigned to a part (4) of the dimmable light distribution (1, 10);
    - Generating at least one floor projection light distribution (3) in the area in front of the light module system by means of the second light module in order to display the information;
    - causing the first light module by means of the second light module to at least partially dim the dimmable light distribution (1) in order to produce a dimmed light distribution (10), and
    - Illumination of the part (4) of the dimmed light distribution (10), to which the minimum brightness is assigned, by means of the second light module.
  9. The method of claim 8, wherein causing the first light module by means of the second light module to dim the dimmable light distribution (1) takes place immediately after generating the at least one floor projection light distribution (3) and preferably the part (4) of the dimmed light distribution (10) is illuminated, either immediately after the first light module begins to dim the light distribution of the first type or as soon as the minimum brightness is reached in this part (4).
  10. The method according to claim 8 or 9, wherein the part of the light distribution (4) of the first type to which the minimum brightness is assigned comprises a light-dark transition.
  11. Method according to one of claims 8 to 10, wherein the light distribution is a low beam distribution (1) with a coarse resolution and the part of the light distribution of the first type (4) to which the minimum brightness is assigned, a light-dark boundary (2), for example, includes an asymmetrical light-dark boundary.
  12. Computer program comprising commands which cause the light module system according to one of claims 1 to 7 to execute the method according to one of claims 8 to 11.
  13. Computer-readable medium with the computer program according to claim 12.
  14. Motor vehicle control device, in particular control device for a light module system according to one of claims 1 to 7 with a computer-readable medium according to claim 13.
  15. Motor vehicle or motor vehicle headlight with at least one light module system according to one of claims 1 to 7 and / or with at least one computer-readable medium according to claim 13 or with at least one motor vehicle control device according to claim 14.
EP18213620.0A 2018-12-18 2018-12-18 Light module system and method of controlling the light module system Pending EP3670258A1 (en)

Priority Applications (1)

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EP18213620.0A EP3670258A1 (en) 2018-12-18 2018-12-18 Light module system and method of controlling the light module system

Applications Claiming Priority (2)

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EP18213620.0A EP3670258A1 (en) 2018-12-18 2018-12-18 Light module system and method of controlling the light module system
PCT/EP2019/085491 WO2020127152A1 (en) 2018-12-18 2019-12-17 Light module system and method for controlling the light module system

Publications (1)

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EP3670258A1 true EP3670258A1 (en) 2020-06-24

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WO2017046168A1 (en) * 2015-09-14 2017-03-23 Valeo Vision Lighting system for motor vehicles
FR3043168A1 (en) * 2015-11-02 2017-05-05 Valeo Vision Device for projecting the light beam of a motor vehicle configured to project a pixelized image
EP3305592A1 (en) * 2016-09-29 2018-04-11 Valeo Vision Lighting system for a motor vehicle
US20180118095A1 (en) * 2015-04-10 2018-05-03 Maxell, Ltd. Image projection apparatus
DE102018105563A1 (en) * 2017-03-15 2018-09-20 Panasonic Intellectual Property Management Co., Ltd. Lighting device, moving body and control program and data carrier

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Publication number Priority date Publication date Assignee Title
US20180118095A1 (en) * 2015-04-10 2018-05-03 Maxell, Ltd. Image projection apparatus
WO2017046168A1 (en) * 2015-09-14 2017-03-23 Valeo Vision Lighting system for motor vehicles
FR3043168A1 (en) * 2015-11-02 2017-05-05 Valeo Vision Device for projecting the light beam of a motor vehicle configured to project a pixelized image
EP3305592A1 (en) * 2016-09-29 2018-04-11 Valeo Vision Lighting system for a motor vehicle
DE102018105563A1 (en) * 2017-03-15 2018-09-20 Panasonic Intellectual Property Management Co., Ltd. Lighting device, moving body and control program and data carrier

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